The view role_usage_grants is meant
to identify USAGE privileges granted on
various kinds of objects to a group that the current user is a
member of. In PostgreSQL, this
currently only applies to domains, and since domains do not have
real privileges in PostgreSQL,
this view is empty. Further information can be found under
usage_privileges. In the future, this
view may contain more useful information.

Table 32-22. role_usage_grants Columns

Name

Data Type

Description

grantor

sql_identifier

In the future, the name of the user that granted the
privilege

grantee

sql_identifier

In the future, the name of the group that the
privilege was granted to

object_catalog

sql_identifier

Name of the database containing the object (always
the current database)